Move over compression ratio, ring valve, and reciprocating compressors. There are two new terms to add to your refrigeration terminology: ‘bi-volt’ and ‘spool.’ The words relate to some of the newest developments in compressor applications.
Ammonia is both a friend to refrigeration contractors and a danger, too. When used properly in refrigeration units, its outstanding heat transfer capabilities can keep food cold for long periods of time, it does not harm the environment, and it is biodegradable. But exposure to ammonia does pose a danger to human health.
Source Refrigeration & HVAC, Anaheim, Calif., announced that Bruce Buchholz has been named president and chief executive officer. Buchholz replaces Lauren Abrams, who resigned as CEO of Source for medical reasons.
Downstate Illinois utility Ameren Illinois is reminding its electric and natural gas business customers looking to reduce their energy expenses that the project deadline is approaching for participation in the 2011-12 ActOnEnergy® efficiency incentives program.
Interstate Warehousing Inc., a Tippmann Group company, announced plans to expand its operations in Franklin, Ind. The refrigerated warehouse company will invest $26 million throughout two phases beginning with the expansion of the company’s current 428,000-square-foot facility by 140,000 square feet.
A well-designed medium temperature refrigeration system will maintain both a proper case temperature and relative humidity (rh). The preservation of food depends not only on the temperature, but also on the relative humidity within a case.
Condenser subcooling ensures that there is a liquid seal at the condenser’s bottom so the liquid line or receiver will not be fed with vapors. This condition prevents any noncondensables, like refrigerant vapor or air, from leaving the condenser’s bottom and entering the receiver or liquid line.
Now that the Environmental Protection Agency (EPA) has greenlighted the use of a number of hydrocarbon (HC) refrigerants in certain refrigeration applications, many in the industry have questions about these refrigerants and their potential uses.